Where does “чёрно-белый” come from?

чёрно-белый (Russian) comes from Russian чёрный, from Proto-Slavic čьrnъ, from Proto-Balto-Slavic kiršnas, from Proto-Indo-European kr̥snós, from Proto-Indo-European kers- — black, dirty; run; to run.

чёрно-белый (Russian): black-and-white, monochrome

Definitions

  1. black-and-white, monochrome

Ancestry of “чёрно-белый”, step by step

чёрно-белый traces back through two separate lines of ancestry.

via Russian чёрный

StepLanguageWordMeaning
1Russianчёрныйblack; rough, coarse; back
2Proto-Slavicčьrnъblack
3Proto-Balto-Slavickiršnasblack
4Proto-Indo-Europeankr̥snósblack; dark, dusky
5Proto-Indo-Europeankers-black, dirty; run; to run

via Russian бе́лый

StepLanguageWordMeaning
1Russianбе́лыйwhite, light
2Proto-Slavicbělъwhite
3Proto-Indo-EuropeanbʰēlHswhite surface or stain
Every word from Proto-Indo-European kers- →Every word from Proto-Indo-European kr̥snós →Every word from Proto-Balto-Slavic kiršnas →